Quantcast
  1. Upgrade efforts paused for now. Thanks for your patience. More details in the thread in Tech Support for those who are interested.
    Dismiss Notice

9mm load development

Discussion in 'Handloading and Reloading' started by Things That Go Bang, Sep 6, 2022.

  1. hoardingthemanual

    hoardingthemanual Member

    Joined:
    Oct 15, 2022
    Messages:
    41
    Location:
    Tx
    I've often wondered how magnum spp would work with 9mm Luger. How much lower below the recommended minimum did you start the loads? I have three reloading manuals, and none of them call for magnum spp. If I had more reloading experience, then I would feel more comfortable going alone off the deep end.
     
    Things That Go Bang likes this.
  2. Hooda Thunkit

    Hooda Thunkit Member

    Joined:
    Jul 10, 2017
    Messages:
    2,369
    Location:
    Oklahoma, out in the red dirt.
    What powder are you using?

    I would be comfortable using Mag primers with listed starting loads, UNLESS using something like Titegroup (which has a very small charge spread).
     
    Things That Go Bang likes this.
  3. Things That Go Bang

    Things That Go Bang Member

    Joined:
    Sep 6, 2022
    Messages:
    5
    I started 10% below the starting load. That was a waste of components. If I did it again, I would be comfortable with starting at the prescribed minimum load with magnum small pistol primers. I’m using CFE Pistol. I suppose primer brand, powders, barrel length, and other factors can make a difference, your results may vary. I chronograph each powder increment too. I found maximum load grouped best, and was still below maximum velocity.
     
    hoardingthemanual likes this.
  4. JJFitch

    JJFitch Member

    Joined:
    Nov 13, 2010
    Messages:
    666
    Location:
    Pacific Northwest
    I've been reloading 9mm for over 30 years. At first matching powder to heavier bullets was an issue! It took several years to develop a load to closely match the famous Winchester 147 grain Match cartridge!
    You're looking at load data for the 124 grain bullet so I'll address that.
    1) It should be pretty easy to find a factory round that your gun likes. Start there with COL and bullet profile and velocity. It really doesn't have to be exact but close helps.
    2) Find load data that matches the factory velocity for that bullet profile.
    3) Drop about 6 tenths to begin with and load 10 at -.6, 10 at -. 4 and 10 at .2 and 10 to match the factory velocity per that manual. if your lucky one of these loads will be better than the others.
    4) Unless you are competing at the national level and cutting X's at 50 yards much of the precision rifle reloading protocols don't matter!
    5) I have a dedicated Dillon SDB set up to load 9mm 124-135 grain bullets and HTG. I haven't changed or even checked the powder drop or COL in several years and I reload 500-1000 rounds a year since I'm no longer shooting competitively.
    Smiles,
     
    Things That Go Bang likes this.
  5. hoardingthemanual

    hoardingthemanual Member

    Joined:
    Oct 15, 2022
    Messages:
    41
    Location:
    Tx
    CFE Pistol and Power Pistol.

    Thanks for sharing this note. I'm cautious; I would have charged with possibly-too-light loads.
     
    Things That Go Bang likes this.
  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice